Controlled Substances and Alcohol Testing Responsibilities of Commercial Driver Staffing Agencies and Motor Carriers That Use Them

Summary: This notice addresses commercial driver staffing agencies that employ commercial drivers who are supplied to motor carriers to operate commercial motor vehicles (CMV). If these CMVs require a commercial driver's license (CDL), the drivers are subject to the U.S. Department of Transportation (DOT) controlled substances (drug) and alcohol testing regulations. Under the Federal Motor Carrier Safety Regulations (FMCSR), a driver staffing agency may qualify as an employer.